Improvement in machine for cleaning oats



W. D FREEMAN.

' Grain Winnower. v No. 91,110. Patented June 8, 1869.

Ivy 3 .Zivve 71, 2-0 r 7 .034 K224; M 7 MA Ki W.

n PETERS. mmuuw m war-1mm n. c,

that swa @strnt Qtflflirr.

WILLIAM FREEMAN, OF TOMALES, CALIFORNIA.

Letters Patent No. 91,110, datll June 8, 1869.

The Schedule referred to in these Letters Patent and making part of the same.

To whom these presents shall come Be it known that 1, WILLIAM D. FREEMAN, of Tomales, Marin county, State of California, have invented an Oats-Gleaner, and an improvement in riddle-make and motion for extracting and separating Silene Galh'ca, or French catch-fly, or other burr or been incumbranee, from oats, barley, and other grains.

The following, taken with the accompanying drawings, together with the letters and figures thereon, is an exact and full description thereof, and willenable any one skilled in the art to make and use the same.

The purposes of my invention are to make and adjust a riddle of such a form, and to give it such a motion as will effectually remove extraneous substances from grains, and leave it clean and marketable, athing which has never been effected before the application of my invention in oats-cleaning.

I construct the screen with cross-wires F, placed wide enough to admit the passage of oats or barley through the wires, as it passes over them crosswise of the screen.

The cross-wires are sustained in their place by the side-pieces and the sustaining-wires G, placed only at such intervals as is necessary to keep the cross-wires in place.

A screen or riddle formed in this wise, and made longer, when. given the proper action, will pass the burrs and extraneous substances overthe screen, and

beyond the cleaner.

Below this oats-screen is a finer screen, that passes the grain to the chute,as desired, and admits of the passage througlrof any fine seeds.

This screen is hung with gauge-screws B B. at each end, so as to give it any angle of declination the grain may require, and also to regulate the jar at either end of the screen by the cogs O 0.

At the lower end of the screen A there is a flattened place, that in cleaning other grains thanoats is covered with screens made of zinc or sheet-iron, and have oblong holes, to admit the ready passage of the grain through the same.

I also place and use my extended oats-riddle in threshing-machines and separators, in the shoes between the screens, so as to discharge the burrs under the fanning-mill and over the anger that turns out the grain.

The auger will require to be lowered to make room for the proper action and placing of this screen.

Thus will be taken out the French catch-fly at the time of threshing or separating.

I construct a motion-gear, D D, at each end of the riddle, and so arrange it, by the gauge-screws B B, as to increase the motion at the lower end, which is important in removing certain kinds of extraneous substances from grain.

The motion is given to each of the rotating shafts, either by hand or other power, and by belts working over pulleys or gearing, so as to give the desired combined action.

Figure 1, grain-cleaner.

Figure 2, riddle.

A, riddle.

B B, gauge-screws and rods.

D D, motion-gear.

E, St'lene Gallica.

F, cross-wires of screw.

G, sustaining-wires.

Olm'm.

I claim a riddle, as shown and described, and to be used as an oats-cleaner, and its operation in threshers and separators, for the purposes specified.

WILLIAM D. FREEMAN.

Witnesses G. S. DREW, CALVIN Bnowu. 

